摘要:

Proton‐ and electron‐excited Auger electron spectra of molybdenum surfaces have been measured. From the conditions of the experiments, the yields (i.e., Auger electrons/incident particle) for the two cases were comparable. The value of proton‐excited Auger electron spectra is discussed with regard to quantitative surface‐composition determinations.

ISSN:0003-6951    

DOI:10.1063/1.1654015

出版商:AIP    

年代:1972

数据来源: AIP

摘要:

The three‐Josephson‐junction asymmetric‐feed quantum interferometer has been analyzed and shown to have increased magnetic field sensitivity and amplitude deviation over the two‐junction interferometer. The critical current at zero applied field is shown to be less than the critical current at zero flux in the interference loop.

ISSN:0003-6951    

DOI:10.1063/1.1654016

出版商:AIP    

年代:1972

数据来源: AIP

摘要:

A transformation is described which connects the already solved problem of a capacitive superconducting weak link driven by a constant‐current source to the physically more realistic situation of a source with finite load line. Hysteresis is found to persist although the loop may be quite narrow. It is shown that the minimum‐current dependence on the Josephson tunneling amplitude can distinguish between capacitive and inductive devices.

ISSN:0003-6951    

DOI:10.1063/1.1654017

出版商:AIP    

年代:1972

数据来源: AIP

摘要:

From an interferometric study of the medium in a 10.6‐&mgr; transverse electric discharge pulsed laser amplifier, a time history of the index of refraction is presented fromt=0 tot=21.5 &mgr;sec. These data agree favorably with the predictions based on a linearized hydrodynamic model for pulsed heat deposition in a gas by a row of discrete discharge pins. The spatial extent of the gain profile is comparable to the refractive‐index distribution for times appropriate for lasing (<10 &mgr;sec). In this time interval, medium distortion is less than 0.1 fringe at 10.6 &mgr;.

ISSN:0003-6951    

DOI:10.1063/1.1654018

出版商:AIP    

年代:1972

数据来源: AIP

摘要:

We have observed stimulated emission in optically pumped molecular iodine vapor. Laser action occurs in more than 150 individual lines which span the spectral region from 544 to 1.335 nm for excitation by the 530‐nm second‐harmonic wavelength of aQ‐switched Nd:YAG laser. The iodine laser oscillates for input pulse energies of a few microjoules. Approximately 106individual laser transitions may be excited by various pump frequencies.

ISSN:0003-6951    

DOI:10.1063/1.1654019

出版商:AIP    

年代:1972

数据来源: AIP